Some guy boarded a flight. He was one race at the start of the flight, went to the bathroom came out another race. Between the US and Japan a few years back. Someone on the flight crew noticed the switch. He might have had a warrant out. But he did manage to board the flight with out being noticed.

Stockholm syndrome.

Yes, but in the movies, actor A puts on a mask that makes him look like actor B then actor B acts out actor A's role until we see the mask come off.

That is why it looks just like actor B; it IS actor B!